<!--
{
  "availability" : [
    "iOS: 17.0.0 -",
    "iPadOS: 17.0.0 -",
    "macCatalyst: 17.0.0 -",
    "tvOS: 17.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "UIKit",
  "identifier" : "/documentation/UIKit/UIImageReaderConfiguration/prefersHighDynamicRange",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "UIKit"
    ],
    "preciseIdentifier" : "c:objc(cs)UIImageReaderConfiguration(py)prefersHighDynamicRange"
  },
  "title" : "prefersHighDynamicRange"
}
-->

# prefersHighDynamicRange

A Boolean value that indicates whether the image reader should decode the image as HDR when the type is capable of decoding in either SDR or HDR.

```
@property (nonatomic, assign, readwrite) BOOL prefersHighDynamicRange;
```

## Discussion

This property doesn’t affect images that only decode in either SDR or HDR. The default value depends on the system capabilities.

## See Also

  <doc://com.apple.documentation/documentation/AppKit/applying-apple-hdr-effect-to-your-photos>



---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)